Thanks for the videos, I finished recapping my Kalamazoo Model Two today, before I saw this video. The tremelo works fine, the amp sounds great! Original tubes, just changed the filter caps, power cord, 1A fuse. The serial number is 1439! And it appears to have been hiding in a closet since the sixties. I only paid a hundred bucks for it in an antique store. These are great little tube amps!
Hate to drag up an old subject, but I have had a Kalamazoo Model 2 since 1974 (paid $20), replaced the filter caps to reduce the hum, but used two 10’s and a 20uf capacitors as the schematic seems to show, but wondered why you used a 47 and two 22uf capacitors? I also changed the power cord a year or so ago, based on your tutorial, as well as removing the “death” cap. Thank you for the clear instruction! -Dan
1:21 that's right, do it right the first time. which was how I got into repairing amps myself--the tech I sent a 67 Bassman years ago didn't do a complete job. Great Stuff once again, Terry!
Hi Terry, your videos and advice helped me repair my Kalamazoo Model 1 last year. For the three prong power cable I used a laptop charger cable with the "Mickey Mouse" end. The cable is flat enough to fit through the original power cable restraint system.
Had this amp on loan for a while and loved it. Especially the tremolo which is interesting - it changes the cathode bias as I recall, which had this trem effect on the amount of distortion in a really pronounced way. I'm cloning the trem circuit for an amp build i'm doing cuz it sounds so wacky! Thanks for the really useful vid, Terry!!
I've heard you mention that you're removing the "death cap" several times recently. Hoping you can take a minute in a future video to explain why you call it that and maybe show a schematic that includes such a cap so we can see its purpose and failure modes. Thanks.
Back from church? Is that a glass of sacramental wine? ;-) Seriously though, great tech tips. Love seeing the insides of all the different amps that come your way.
@Time the Avenger The Hot wire (brown) should be fused as shown, but the convention is, the hot wire should also be routed thru the switch. The neutral (blue wire) shouldn't be wired thru the switch..
@Time the Avenger Connect to one of the input leads of the transformer to the blue wire. The other input lead of the transformer goes to the switch (which it may already be connected to).
When I was a teenager, I learned my lesson (the hard way) on getting lazy with replacing the capacitors. On a couple of different TV's, I only replaced the faulty section of a multi-section can. Guess what? Within a couple of weeks, both TV's came back and the other section of the capacitor had failed. After that, my rule became....if one section is faulty, they all go. BTW, another thing I can't stand is when people get lazy and solder the new capacitors directly across the old one. I've actually seen old servicing books where that practice was condoned; but, we both know that it's not a good idea and why.
hello terry, have you tried to remove the rivet using a drill with a drill bit (in the diameter of the rivet)? It's a shape I use and it always works! Regards
Was it Johhny B. Goode that could play a guitar like ringin' a bell? You do the same in electronics repair, my man! I love to see how instantaneously your instinct kicks in when you get inside an amp carcass. But...can you play any ZZ Top riffs thru your finished jobs? (Uncle Doug does...kinda....but we all love him, too!)
Keeping busy, that's the main thing. Great video, with one quick question. What is the adhesive to use to keep the caps from moving? Thanks again for a cool repair.
I currently have a New Zealand made Rockit Super Sustain 130 head. Which looks kind of like a Mesa amp with the basket weave, and the circuit kind of looks like a Music Man RD130 style amp with solid state preamp, 12AX7 Phase Inverter, and 4x 6L6 power tubes. The power section was an abortion, and with almost no background on the amp, I've been slowly rebuilding the power section. They (previous "tech") just mounted new low budget caps to the original can caps. NO! And the wiring looks like it's been changed. So I'm slowly reverse engineering the thing, but it will be great when it's done.
Silly question. It looks like you riveted the terminal strip to the chassis. I always find rivets eventually loosen up and you might lose a good connection. Why not a #4 screw or something with lock washers?
Do you guys still call an electric git fiddle an 'axe'? Or did I just put the boomer stink of the 70s label on my forehead? A Kalamazoo amp? What next - a Bad Axe Bad-Ass Axe Head? Guess you'd have to be a Michigander. And even then, that was pretty stupid. Cool vids!!!
My first amp back around 1966/67. Wish I still had it. Thanks for a bit of nostalgia Terry.
Thanks for the videos, I finished recapping my Kalamazoo Model Two today, before I saw this video. The tremelo works fine, the amp sounds great! Original tubes, just changed the filter caps, power cord, 1A fuse. The serial number is 1439! And it appears to have been hiding in a closet since the sixties. I only paid a hundred bucks for it in an antique store. These are great little tube amps!
Your not the only one with projects backing up Terry. Keep up doing what you are doing and thanks for showing us your Tek-Tips! 🍷😁
Hate to drag up an old subject, but I have had a Kalamazoo Model 2 since 1974 (paid $20), replaced the filter caps to reduce the hum, but used two 10’s and a 20uf capacitors as the schematic seems to show, but wondered why you used a 47 and two 22uf capacitors? I also changed the power cord a year or so ago, based on your tutorial, as well as removing the “death” cap. Thank you for the clear instruction! -Dan
Congratulations from Brazil.
1:21 that's right, do it right the first time. which was how I got into repairing amps myself--the tech I sent a 67 Bassman years ago didn't do a complete job. Great Stuff once again, Terry!
Enjoy the red wine, prost. I like your videos 🥉
Church Clothes?
Looks like you were having a wine party.
Great Job.
Looks like Terry came from a BBQ Luau.
It's dress down day..
Hi Terry, your videos and advice helped me repair my Kalamazoo Model 1 last year. For the three prong power cable I used a laptop charger cable with the "Mickey Mouse" end. The cable is flat enough to fit through the original power cable restraint system.
Terry likes his shirts to shout before he does! Nice threads...... Cool vid, thanks
Had this amp on loan for a while and loved it. Especially the tremolo which is interesting - it changes the cathode bias as I recall, which had this trem effect on the amount of distortion in a really pronounced way. I'm cloning the trem circuit for an amp build i'm doing cuz it sounds so wacky! Thanks for the really useful vid, Terry!!
Great job Terry! I love seeing the heartbeat of a sweet sweet tremolo! Looking forward to the next one!
Great stuff, we’ll done! Got.a great bottle of wine waiting here in Lubbock for you n wifey!
thanks Terry! your videos are very inspiring to me as a beginner.
I built a head version of this circuit putting it on a tag board versus point to point. Great video.
:)
I've heard you mention that you're removing the "death cap" several times recently. Hoping you can take a minute in a future video to explain why you call it that and maybe show a schematic that includes such a cap so we can see its purpose and failure modes. Thanks.
Agreed!
Terry, your multi Dimensional-Lab shirt has a funtasticl matching color with the solder station!
Back from church? Is that a glass of sacramental wine? ;-) Seriously though, great tech tips. Love seeing the insides of all the different amps that come your way.
Nice job, and thanks for your content as always. Thumb is up!
Excellent. And I love new electrolytic capacitors.
Another Great Video Terry!! I did the same thing on my Kalamazoo two .
Not a Jensen but I love the video Terry. Another great from D-Lab
Hi Terry ! You're wearing a very nice shirt. 🤣
Another great repair, thank you and yes, lots learnt! That shirt is your church clothes? That wouldn't be The Church of the Very Large Array would it?
Great video Terry.... We need to make you new theme music... I am on it !!!!
I was like wow turn down the tone on that shirt! 🎸😄 JK
Man I wish that someday I can whip through an amp project that fast.
Love the shirt Terry!
Switch should not be on return / neutral side of line cord
Agreed 100%
@Time the Avenger The Hot wire (brown) should be fused as shown, but the convention is, the hot wire should also be routed thru the switch. The neutral (blue wire) shouldn't be wired thru the switch..
@Time the Avenger Connect to one of the input leads of the transformer to the blue wire. The other input lead of the transformer goes to the switch (which it may already be connected to).
Thumbs up for the funky shirt
It's a LOT easier to drill out Zoo pop rivets, I just did two no muss/fuss.
When I was a teenager, I learned my lesson (the hard way) on getting lazy with replacing the capacitors. On a couple of different TV's, I only replaced the faulty section of a multi-section can. Guess what? Within a couple of weeks, both TV's came back and the other section of the capacitor had failed. After that, my rule became....if one section is faulty, they all go. BTW, another thing I can't stand is when people get lazy and solder the new capacitors directly across the old one. I've actually seen old servicing books where that practice was condoned; but, we both know that it's not a good idea and why.
hello terry, have you tried to remove the rivet using a drill with a drill bit (in the diameter of the rivet)? It's a shape I use and it always works! Regards
Was it Johhny B. Goode that could play a guitar like ringin' a bell? You do the same in electronics repair, my man! I love to see how instantaneously your instinct kicks in when you get inside an amp carcass. But...can you play any ZZ Top riffs thru your finished jobs? (Uncle Doug does...kinda....but we all love him, too!)
Hi there, big fan of your work. My question is did you drain the caps before you worked on the amp?? It wasn't talked about.
Never applied power before maintenance
@@d-labelectronics Agree.
AWESOME shirt!!
Dude...... that shirt tho.......lol
Oh, the shirt, the shirt!
do you do retro fitting, stuff new caps in the old one for orgional look ??
Keeping busy, that's the main thing. Great video, with one quick question. What is the adhesive to use to keep the caps from moving? Thanks again for a cool repair.
...either silicon adhesive, or hot melt glue.
eclecticproducts.com/products/e6000/
@@d-labelectronics , Thank you Terry.
Bearing with U Ter! :)
I currently have a New Zealand made Rockit Super Sustain 130 head. Which looks kind of like a Mesa amp with the basket weave, and the circuit kind of looks like a Music Man RD130 style amp with solid state preamp, 12AX7 Phase Inverter, and 4x 6L6 power tubes.
The power section was an abortion, and with almost no background on the amp, I've been slowly rebuilding the power section. They (previous "tech") just mounted new low budget caps to the original can caps. NO! And the wiring looks like it's been changed. So I'm slowly reverse engineering the thing, but it will be great when it's done.
Very nice shirt.
Silly question. It looks like you riveted the terminal strip to the chassis. I always find rivets eventually loosen up and you might lose a good connection. Why not a #4 screw or something with lock washers?
Rivet soldered to chassis
@@d-labelectronics Oh, that'll do it.
Wheres Young Eli!!? We want "The Professional" Young Tel!!!
She was here last night. Issues in her life : ( I do not push the videos
@@d-labelectronics ha ha!
Do you guys still call an electric git fiddle an 'axe'? Or did I just put the boomer stink of the 70s label on my forehead? A Kalamazoo amp? What next - a Bad Axe Bad-Ass Axe Head? Guess you'd have to be a Michigander. And even then, that was pretty stupid. Cool vids!!!
That shirt clearly needs recapped. Wayyyy too much gain!